I was thinking about next deer season and am going to just stay with the WWs. I lay a file flat on them as I hold the arrow still and give a half dozen strokes, then rotate and do the same and in less than 2 minutes it's shaving hair. There is no angle to get or worry about' just lay it flat. And you get immediate feedback when you feel the file starting to grab in and remove material. What could be simpler?
I love then to spin the arrow and it just whirls. So fun so easy.
I've got all kinds of sharpening things- KME, workshop belt, stones,ceramic rods, jewel sticks.
But in the feild I just carry a little file to touch up and boom-it's ready!